Draft-hitching device



Patented Get. 13, 1925 UNITED STATES JOHN THOMAS DOOLAN, OF VANCOUVER, BRITISH COLUMBIA, CANADA.

nnArr-Hrrcmne DEVICE. V

Application filed October 20, 1922. semi No. 595,859.

To all whom c't may concern:

Be it known that 1, JOHN TrroMAs DooLAN,

a subject ofthe King of Great Britain,

residing at the city of Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Draft-Hitching Devices, of'which the following is a specific'ation. My invention relates to improvements in draft-hitching devices, and the object of my inventionisto provide a device of this nature particularly adapted to binders the use of which eliminates side draft in the operation of the machine.

I attain this object by the construction illustrated in the accompanying drawings in which Fig. 1 is a perspective view of my device as hitched to a binder.

Fig. 2 is a plan view.

Similar numerals of reference indicate similar parts in the views.

1 indicates generally a part of the structure of a typical binder having the cutter 2 and ground wheels 3, while t indicates generally the forecarriage including the truck 5, pole 6, and whifiietree 7.

Pivotally connected to the whiiiletree 7 at its midlength is the forward end 8 of'a rearvardly extending bar 9 the rear end of which is connected toa crossbar 10 the outer end 11 of which is extended to a point above the centre of the truck and to which outer end 11 is secured one end of a diagonal brace 12 the opposite end of which brace is connected to the binder structure at the point indicated by the letter A. The truck 5 is pivoted to the bar 10 by the pivot 13 and the pole 6 is offset to lie in front and on the inner side of the truck, as shown, being positioned directly under the bar 9, and carried by offset supporting members 14 and 15 secured to the truck. The truck wheels 16 and 17 are without flanges.

The inner end of the crossbar 10 is connected by a suitable connection, such as the link 18 and bar 19, to the binder at the point B, this point being the point of dead centre of the entire binder load, that is to say, the point at which the binder could be pulled perfectly straight without side draft if the motive power could feasibly be hitched to this point and the pull applied in a straight line therewith.

The connection consisting of the link 18 and bar 19 may be formed as one continuous bar connection, but as shown the link is connectedat' one end to the crossbar 10 and at its opposite end to thediag onal brace 12, while the bar is connected to the brace and binder in alignment with the li nli, the co nnection extending at right angles toiboth the 20' indicates a binder and the crossbar. brace between the inner end of the crossbar 10' and the outer end of the bar 9.

21 indicates the singletr'eesto' which the team is connected, there being two on each side of the pole 6, and the grain line is indicated by the numeral 22.

Referring now to the drawing it will be seen that the pull of a team of horses is applied to the bar 9 and consequently to the crossbar 10 at the point of connection thereto, or at the point indicated by the letter C, and this pull is transmitted to the binder through the crossbar 10, link 18, and bar 19, to be exerted at the point B, that is, at the point of dead centre. The space between the point B, that is, the theoretlcal point of hitching, and the grain line is not sufiicient to allow the horses on the inner side of the pole to operate and therefore it is necessary to establish a new hitching point which will permit the horses to operate while at the same time maintaining the dead centre pull at B so that by the application of thedevice described the hitching point C is established through which the pull is applied to B as effectively as if it were applied thereto in a direct line therewith. This point C is determined by the amount of space required by the horses between the grain line and the pole so that the bar 9 is spaced on and. connected to the crossbar at a point the distance between which and the grain line affords the desired space, and this necessitates offsetting the truck from the position it is found in in binders at the present time, as under the arrangement illustrated and described it is essential that the truck lies outside the point C, or in other words, the practical hitching point C lies between the inside of the truck and grain line 22, being offset from the theoretical hitching point B suflicient to allow for the effective operation of the inside horses of the team.

What I claim as my invention is 1. The combination with abinder, of a crossbar disposed in front thereof and connected thereto by a connection extending between its inner end and the binder, said crossbar being adapted to permit hitching of the draft thereto at a point between the inside of the binder truck' and the grain line.

2. The combination With a binder, of a crossbar disposed in front thereof and connected thereto by a connection extending between its inner end and the binder, said crossbar being adapted to permit hitching of the draft thereto at apoint between the inside of the binder truck and the grain. line, and abrace extending from the opposite end of said crossbar diagonally across the connection aforesaid connected at its inner end to the binder.

3. The combination with a binder, of a crossbar disposed in front thereof and connected thereto by a connection extending between its inner end and the binder, said crossbar being adapted to permit hitching of the draft thereto at a point intermediate its length, and a truck pivotally connected to the outer end of said crossbar the inner Wheel of Which lies outside the hitching point.

4. The combination With a binder, of a crossbar disposed in front thereof and connected thereto by a connection extending between its inner endand the binder, said crossbar being adapted to permit hitching of the draft at a point intermediate its length, and a truck pivotally connected to the outer end of said crossbar the inner Wheel of which lies outsidethe hitching point and the pole of which is offset in- Wardly to lie in line With thehitchin'g point.

In testimony whereof I affix my signature at Vancouver, B; (1., Canada, this 6th day of October, 1922.

JOHN THOMAS DOOLAN. 

